You need to open the services console in Author Mode, make your changes, and
save the .msc file.
To open the services console in Author Mode, go to your C:\Windows\System32
folder. Just to be on the safe side, you might want to make a copy of the
services.msc file. Next, right click on services.msc and select Author from the
menu. Click on the Standard tab. Close the console and click Yes when asked if
you want to save the changes.